The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 30, 2015

Filed:

May. 20, 2014
Applicant:

Wistron Neweb Corporation, Hsinchu, TW;

Inventors:

Cheng-Hsiung Lu, Hsinchu, TW;

Chiung-Wen Hsin, Hsinchu, TW;

Assignee:

Wistron NeWeb Corporation, Hsinchu Science Park, Hsinchu, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/38 (2006.01); H04B 1/04 (2006.01); H04B 1/18 (2006.01);
U.S. Cl.
CPC ...
H04B 1/0458 (2013.01); H04B 1/18 (2013.01);
Abstract

A signal transceiver with enhanced return loss in a power-off state includes a connector, a band-pass filter, a front-end module and an impedance transformation circuit. The impedance transformation circuit is coupled between the band-pass filter and the front-end module for transforming an input impedance of the signal transceiver, and includes an input terminal coupled to the band-pass filter for receiving a signal; an output terminal coupled to the front-end module for outputting the signal to the front-end module; an impedance transforming unit; and a power source input circuit coupled to the impedance transforming unit for providing a power source; wherein the impedance transforming unit is coupled between the power source input circuit and the input terminal, for transforming the input impedance of the signal transceiver.


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